CN105492804A - Method for automatic calibration of automatic transmission - Google Patents
Method for automatic calibration of automatic transmission Download PDFInfo
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- CN105492804A CN105492804A CN201380078823.XA CN201380078823A CN105492804A CN 105492804 A CN105492804 A CN 105492804A CN 201380078823 A CN201380078823 A CN 201380078823A CN 105492804 A CN105492804 A CN 105492804A
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- shifting actuator
- detection sensor
- transmission
- calibration
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- 230000005540 biological transmission Effects 0.000 title claims abstract description 101
- 238000000034 method Methods 0.000 title claims abstract description 48
- 238000001514 detection method Methods 0.000 claims abstract description 73
- 230000008878 coupling Effects 0.000 claims description 26
- 238000010168 coupling process Methods 0.000 claims description 26
- 238000005859 coupling reaction Methods 0.000 claims description 26
- 238000004590 computer program Methods 0.000 claims description 8
- 230000007935 neutral effect Effects 0.000 claims description 7
- 238000012546 transfer Methods 0.000 claims description 6
- 230000002159 abnormal effect Effects 0.000 abstract 1
- 230000008859 change Effects 0.000 description 45
- 238000012545 processing Methods 0.000 description 10
- 238000012423 maintenance Methods 0.000 description 7
- 238000006073 displacement reaction Methods 0.000 description 5
- 230000007246 mechanism Effects 0.000 description 5
- 238000010586 diagram Methods 0.000 description 4
- 238000005259 measurement Methods 0.000 description 3
- 230000004048 modification Effects 0.000 description 3
- 238000012986 modification Methods 0.000 description 3
- 230000006399 behavior Effects 0.000 description 2
- 230000008901 benefit Effects 0.000 description 2
- 230000006870 function Effects 0.000 description 2
- 230000006872 improvement Effects 0.000 description 2
- 230000008439 repair process Effects 0.000 description 2
- 230000003068 static effect Effects 0.000 description 2
- 230000001133 acceleration Effects 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
- 238000013500 data storage Methods 0.000 description 1
- 230000001419 dependent effect Effects 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000002349 favourable effect Effects 0.000 description 1
- 239000000446 fuel Substances 0.000 description 1
- 238000012544 monitoring process Methods 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 230000004044 response Effects 0.000 description 1
- 239000004065 semiconductor Substances 0.000 description 1
Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16H—GEARING
- F16H61/00—Control functions within control units of change-speed- or reversing-gearings for conveying rotary motion ; Control of exclusively fluid gearing, friction gearing, gearings with endless flexible members or other particular types of gearing
- F16H61/26—Generation or transmission of movements for final actuating mechanisms
- F16H61/28—Generation or transmission of movements for final actuating mechanisms with at least one movement of the final actuating mechanism being caused by a non-mechanical force, e.g. power-assisted
- F16H61/30—Hydraulic or pneumatic motors or related fluid control means therefor
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60W—CONJOINT CONTROL OF VEHICLE SUB-UNITS OF DIFFERENT TYPE OR DIFFERENT FUNCTION; CONTROL SYSTEMS SPECIALLY ADAPTED FOR HYBRID VEHICLES; ROAD VEHICLE DRIVE CONTROL SYSTEMS FOR PURPOSES NOT RELATED TO THE CONTROL OF A PARTICULAR SUB-UNIT
- B60W30/00—Purposes of road vehicle drive control systems not related to the control of a particular sub-unit, e.g. of systems using conjoint control of vehicle sub-units
- B60W30/18—Propelling the vehicle
- B60W30/18009—Propelling the vehicle related to particular drive situations
- B60W30/18054—Propelling the vehicle related to particular drive situations at stand still, e.g. engine in idling state
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16H—GEARING
- F16H61/00—Control functions within control units of change-speed- or reversing-gearings for conveying rotary motion ; Control of exclusively fluid gearing, friction gearing, gearings with endless flexible members or other particular types of gearing
- F16H61/26—Generation or transmission of movements for final actuating mechanisms
- F16H61/28—Generation or transmission of movements for final actuating mechanisms with at least one movement of the final actuating mechanism being caused by a non-mechanical force, e.g. power-assisted
- F16H61/2807—Generation or transmission of movements for final actuating mechanisms with at least one movement of the final actuating mechanism being caused by a non-mechanical force, e.g. power-assisted using electric control signals for shift actuators, e.g. electro-hydraulic control therefor
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60Y—INDEXING SCHEME RELATING TO ASPECTS CROSS-CUTTING VEHICLE TECHNOLOGY
- B60Y2304/00—Optimising design; Manufacturing; Testing
- B60Y2304/09—Testing or calibrating during manufacturing
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60Y—INDEXING SCHEME RELATING TO ASPECTS CROSS-CUTTING VEHICLE TECHNOLOGY
- B60Y2400/00—Special features of vehicle units
- B60Y2400/70—Gearings
- B60Y2400/76—Automatic gearshift to neutral
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16H—GEARING
- F16H61/00—Control functions within control units of change-speed- or reversing-gearings for conveying rotary motion ; Control of exclusively fluid gearing, friction gearing, gearings with endless flexible members or other particular types of gearing
- F16H61/26—Generation or transmission of movements for final actuating mechanisms
- F16H61/28—Generation or transmission of movements for final actuating mechanisms with at least one movement of the final actuating mechanism being caused by a non-mechanical force, e.g. power-assisted
- F16H2061/283—Adjustment or calibration of actuator positions, e.g. neutral position
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Automation & Control Theory (AREA)
- Transportation (AREA)
- Control Of Transmission Device (AREA)
Abstract
The disclosure concerns a method for automatic calibration of a position detection sensor of an automatic transmission comprising a gearshift actuator, the method comprising: registering, using the position detection sensor, the position of the gearshift actuator upon power-up of the transmission; and performing a calibration of the position detection sensor if the registered position of the gearshift actuator is outside a predetermined expected position range of the gearshift actuator or within a predetermined abnormal position range of the gearshift actuator.
Description
Technical field
The disclosure relates to the method for carrying out automatic calibration to the position-detection sensor of the automatic transmission comprising gear shifting actuator.The disclosure also relates to the automatic transmission of calibrating by this method and the vehicle comprising this automatic transmission.
This is favourable in the performance optimizing automatic transmission, is particularly useful for truck, half truck, road train etc., but also can be used in other vehicle.
Background technique
The progress of transmission technology allows automatically and semi-automatic transmission more and more effectively implementing in vehicle, these operations more optimized that are automatic or these vehicles of semi-automatic transmission assistance promotion.The acceleration or deceleration time that this helps to improve fuel economy, less arrival desired speed is spent and minimizing can be absorbed in the fatigue of the driver of the operation of road instead of speed changer.Automatically and semi-automatic transmission be introduced in recent years in the heavy vehicle of such as truck, half truck, road train etc., and as the result of the improvement to these speed changers, these introducings are feasible.
In order to make automatic transmission be feasible in these heavy vehicles, the control unit being commonly referred to the advanced person of shift change controller (GCU) of controlled variator may be required.In order to safeguard these speed changers, GCU may need to be removed, thus may allow to change GCU, overhauls speed changer or safeguards GCU unit self.Removing or change GCU is complicated work, because it is connected to the actuating of the different gear of speed changer the different gears of controlled variator, and when the vehicle comprised for the transfer case of multiple gear level (gearlevels) of such as such as half truck, it also controls the actuating of transfer case.The operation of these gear shifting actuators is most important for the proper operation of automatic transmission, because they enable GCU change gear.Automatic transmission can be equipped with position-detection sensor, and described position-detection sensor is for controlling and examine the position of gear shifting actuator, and in order to ensure proper operation, position-detection sensor must be calibrated.
JP2004084890A discloses the characteristic storing automatic transmission electronic control unit, with when parts are replaced, use the variation characteristic of input to replace the variation characteristic of previous blocks, prevents the behavior change of speed changer.
This solution relates to transfers to another control unit to guarantee the similar operations of changed unit by data from a transmission electronic control unit.But, need the further improvement of the maintenance about gearbox unit.
Summary of the invention
Target of the present disclosure is to provide the more effective method of the automatic calibration for automatic transmission.This target is realized by the feature described in the arbitrary claim in claim 1,8,18 or 24.
The disclosure relates to a kind of method for carrying out automatic calibration to the position-detection sensor of the automatic transmission comprising gear shifting actuator, and the method comprises: the position of use position detecting sensor record gear shifting actuator when speed changer is enabled; And, if the position of the gear shifting actuator recorded outside the predetermined desired location scope of gear shifting actuator or the position of the gear shifting actuator recorded within the predetermined out-of-the way position scope of gear shifting actuator, then perform the calibration to position-detection sensor.
At least one position control valve of usual use pneumatically controls each gear shifting actuator of automatic transmission, and at least one position control valve described receives the microprocessor-based control signal from shift change controller.This microprocessor-based control signal usually can be corresponding with two or three precalculated positions of gear shifting actuator, such as corresponding with neutral position, left engagement positio and/or right engagement positio.This at least one position control valve is arranged to correspondingly control gear shifting actuator, namely be arranged to gear shifting actuator is positioned at predetermined neutral position, left engagement positio and/or right engagement positio, these positions are corresponding from different longitudinal actuated position of gear shifting actuator.Speed changer comprises the position-detection sensor of the actuated position for monitoring gear shifting actuator further.Usually, the actuated position of each gear shifting actuator is monitored by independent position-detection sensor.When being given an order by electronic control unit so that gear shifting actuator is moved to a certain actuated position, position-detection sensor provides the feedback about when reaching the time point of the expectation actuated position of gear shifting actuator to electronic control unit.Therefore, any difference between ordered actuated position and actual actuation position can be determined immediately.
Shift change controller remove with the possible maintenance of shift change controller or maintenance time, the position-detection sensor be associated with gear shifting actuator may be replaced, upgrade, displacement etc., thus the output signal of any position-detection sensor can be associated with any physical actuation position of gear shifting actuator no longer beyond the question.Therefore, after the assembling of speed changer and shift change controller, the calibration to position-detection sensor is needed, to ensure that the output signal of each position-detection sensor can be associated with the particular activated position of corresponding gear shifting actuator.
Such as, calibration is performed in the following way: arrive different actuated positions continuously by order gear shifting actuator and for the output signal of each predetermined actuated position record position detecting sensor, make unique output signal can be associated with unique actuated position of gear shifting actuator by electron gear shifting control unit.Alternatively, the actuated position corresponding with neutral position is only checked.
A solution is the calibration performed when each speed changer is enabled position-detection sensor, for guaranteeing that position-detection sensor is calibrated correctly all the time.But this calibration strategy tends to slow down enabling of speed changer and this calibration is unnecessary as a rule.Another calibration strategy safeguards at speed changer or manually calibrates after maintenance, but there is maintenance technician and forget the risk of carrying out calibrating.
Utilize according to method of the present disclosure, when needed, automatically perform the calibration to position-detection sensor.Basic ideas of the present disclosure are the following fact: namely, after speed changer maintenance or when shift change controller is removed from case of transmission temporarily, gear shifting actuator has different actuated positions usually.At normal engine shutdown, each gear shifting actuator is controlled so as to have predetermined actuated position.But gear shifting actuator has to have different actuated positions usually, so that shift change controller can assemble with case of transmission.Therefore, record the output signal of unregulated position-detection sensor simply when speed changer is enabled, can determine about the instruction of position-detection sensor the need of calibration.When the position of recorded gear shifting actuator is outside the predetermined desired location scope of gear shifting actuator, this is the strong instruction needing calibration.Similarly, when the position of recorded gear shifting actuator is within the scope of predetermined out-of-the way position, this is also the strong instruction needing calibration.Improving the enabling time of automatic transmission according to the automatic calibration to position-detection sensor of the present disclosure, because this calibration only just performs when needed, and is not at least all perform when each speed changer is enabled.Thus, this calibration strategy improves enabling time, because this calibration will only be performed in some cases.
The disclosure also relates to the automatic calibrating method of the position-detection sensor of the automatic transmission for comprising gear shifting actuator, wherein, the method comprises: if can detect that when speed changer is enabled the request of described automatic transmission is dismantled in nearest preparation, then perform the calibration of the position-detection sensor be associated with gear shifting actuator.
For identifying that this substituting solution of the instruction of the calibration needing position-detection sensor relates to the analysis to the nearest command history that shift change controller receives.Frequently, at least one in gear shifting actuator must be set at specific actuated position, to allow to remove shift change controller from case of transmission.Its reason is, at assembling condition, the reverse shift fork of shift change controller is given prominence to from shift change controller and enters case of transmission.It is little as far as possible that at least one opening described of reception reverse shift fork in case of transmission is generally configured to size, to avoid the unnecessary reduction of the structural rigidity of case of transmission.Therefore, in order to take out reverse shift fork by the opening of case of transmission, at least one reverse shift fork must be set at specific actuated position usually.In order to prepare the dismounting of shift change controller, receive specific control command by shift change controller, for preparing speed changer for dismounting.In response to this control command, shift change controller, according to predetermined Schema control gear shifting actuator, can take out shift change controller and reverse shift fork thus, and without the need to must further reverse shift fork be shifted.Thus alternative solution for the instruction identifying " needing to calibrate position-detection sensor " relates to the analysis when speed changer is enabled to the recent control command that shift change controller receives.If can detect that the request of described speed changer is dismantled in nearest preparation, i.e. control command, then perform the calibration to position-detection sensor.
The disclosure also relates to and is arranged to perform the automatic transmission of said method, and relates to: computer program, this computer program comprise for perform when said program is run on described method program-code in steps; Computer product, this computer product comprise storage on a computer-readable medium for perform when described program product runs on computers described method program-code in steps; And computer system, this computer system is for implementing described method.
Further advantage is realized by one or several features implementing dependent claims.
According to an aspect of the present disclosure, the method comprises further: the position of recording at least two gear shifting actuators when speed changer is enabled, if if each position of recording of described at least two gear shifting actuators outside predetermined desired location scope or each position of recording of described at least two gear shifting actuators within predetermined out-of-the way position scope, then perform the calibration to the position-detection sensor be associated.The method causes the risk reducing the execution calibration caused by the measurement error of position-detection sensor.Position-detection sensor all relates to the measurement error of certain level.Such as, the output signal of sensor changes with temperature.Further, the output signal of sensor represents the real conditions of measured object more or less exactly, and its validity defines according to such as certain percentage of +/-usually.If perform calibration based on the conveying signal deciding of two position-detection sensors instead of single-sensor, then due to the output signal of two sensors, to relate to the possibility of enough large measurement error low simultaneously, so the possibility of unnecessary calibration is lowered.
The various different automatic transmission being arranged to use actuator gear shift is can be used for according to method of the present disclosure.
Accompanying drawing explanation
In the following detailed description of the present disclosure provided, with reference to accompanying drawing, wherein:
Fig. 1 illustrates the schematic outline of the power train of vehicle,
Fig. 2 illustrates the schematic diagram of gear-box,
Fig. 3 illustrates that wherein GCU is by the schematic diagram of gear-box partly removed,
Fig. 4 illustrates the flow chart of described method,
Fig. 5 illustrates the schematic diagram of the computer system that can perform described method.
Embodiment
Hereinafter All aspects of of the present disclosure will be described by reference to the accompanying drawings, the disclosure is not limited to be described the disclosure, wherein identical mark represents identical element, and the modification of described aspect is not limited to the embodiment that specifically illustrates, but is applicable to other modification of the present disclosure.
Fig. 1 illustrates the schematic outline of the example of the power train in vehicle.The bent axle 104 of motor 102, between motor 102 and speed changer 103, is connected to the rotatable transmission input shaft 105 of the speed changer 103 of vehicle by main clutch 101.Speed changer 103 is connected with the driving wheel 12 of vehicle by transmission output shaft 111.When clutch 101 is in engagement positio, it is transmitting torque between bent axle 104 and transmission input shaft 105, and when clutch is in disengaging configuration, bent axle 104 and input shaft 105 separated from one another and they between there is no moment of torsion transmission.By the actuated position of clutch actuator mechanism 106 mechanically solenoidoperated cluthes 101.Clutch actuator mechanism 106 and then controlled electronically by shift change controller 107.Control unit of engine 108 controls motor 102.These two control units 107,108 are such as communicated with one another by controller zone network (CAN) bus 109.Alternatively, motor and speed changer can be controlled by single control unit.Signal cable 110 can be used for control signal to be sent to clutch actuator mechanism 106 from shift change controller 107.
Fig. 2 illustrates the schematic diagram of the example of the speed changer 103 in vehicle.The rotatable transmission input shaft 105 of speed changer 103 is illustrated.Transmission output shaft 111 is arranged to coaxial with input shaft and is rotatably connected to input shaft, and is rotatably connected with the driving wheel 112 of vehicle.Transmission input shaft 105 and transmission output shaft 111 are equipped with multiple free gear 201,202,203,204,205, free gear 201,202,203,204,205 is connected to input shaft 105 and output shaft 111 by bearing means, and free gear is rotatably arranged on corresponding axle.Countershaft 113 is oriented to and input shaft and output shaft 105,111 parallel, and is equipped with multiple gear 206,207,208,209,210, gear 206,207,208,209,210 be rotatably attached to countershaft 113 and with countershaft 113 synchronizing moving.Case of transmission 240 covers and back shaft and gear.Shift change controller 107 is attached to the outside of housing 240 removedly, such as, on the top side of housing 240.Shift change controller 107 comprises the microprocessor be programmed with the automatically gear-change operation of controlled variator 103.Shift change controller 107 receives input from other parts various such as control unit of engine of vehicle and accelerator pedal actuated position, and use the suitable gear ratio of multiple gears selections between input shaft and output shaft 105,111 of speed changer, as well known for one of skill in the art.Shift change controller 107 is also equipped with multiple pneumatically-operated gear shifting actuator (not shown), its each be all connected to independent reverse shift fork 231,232,233.Microprocessor by means of the position control valve be integrated in shift change controller 107 to control the motion of gear shifting actuator.Reverse shift fork 231-233 extends to outside from shift change controller 107 and is arranged to the opening 241 that is inserted through the sidewall of housing 240, for the axial position of multiple coupling sleeves 234,235,236 of controlled variator.Such as, by means of the inner side in the outside and coupling sleeve that are positioned at this axle axially aligns spline, coupling sleeve 234-236 is by the axle that locks onto rotatably residing for it and be axially-displaceable position relative to the axle residing for it.Thus, coupling sleeve can be axially displaced, simultaneously still can transmit torque to axle and from axle transmitting torque.
In order to change gear, namely in order to change transmission input shaft and output shaft 105, gear ratio between 111, shift change controller 107 controls its corresponding gear shifting actuator 270 so that dynamic reverse shift fork 231, 232, 233, reverse shift fork 231, 232, 233 and then move axially coupling sleeve 234, 235, 236, thus cause described coupling sleeve 234, 235, 236 be positioned at neutral position (namely, coupling sleeve 234-236 not with the position that any gear 201-205 engages) corresponding axial position or be positioned at engagement positio (namely, coupling sleeve and gear 201, 202, 203, 204, 205 positions engaged) corresponding axial position.Coupling sleeve 234-236 comprises tooth engaged (dogteeth) at least one axial side being positioned at coupling sleeve 234,235,236 or similar coupling arrangement, for make can rotational lock between gear 201-205 and coupling sleeve 234-236.Due to one in coupling sleeve 234,235,236 engaging gear 201,202,203,204,205, so, this gear by with the axle synchronizing moving residing for it.Then, moment of torsion can be delivered to countershaft 113 from input shaft 105 and be delivered to output shaft 111 further and pass to driving wheel 112.Coupling sleeve 234,235,236 also can engage input shaft 105 and output shaft 111, makes moment of torsion directly be delivered to output shaft 111 from input shaft 105.Thus, shift change controller 107 controls the motion of gear shifting actuator, and this gear shifting actuator is connected to the reverse shift fork 231,232,233 for the gear of selective transmission 103 rigidly.Shift change controller 107 can be arranged to solenoidoperated cluthes actuator mechanism 106 further, and such as communicates with other control unit of such as control unit of engine by being connected to CAN 109.Gear-box 103 can be connected to the interval speed changer (rangetransmission) comprising such as two static stalls further, and make compared with not having the speed changer of interval speed changer, the sum of possible gear is double.
Speed changer 103 is equipped with position-detection sensor further, and each position-detection sensor generates the output signal corresponding with the position of each gear shifting actuator or reverse shift fork 231-233.
The mode of the position of position-detection sensor record gear shifting actuator or reverse shift fork 231-233 can perform in several different ways, such as, by being arranged to directly to measure the actuated position of gear shifting actuator or being performed by the position measuring the component such as reverse shift fork 231,232,233 or the coupling sleeve 234,235,236 that are connected with gear shifting actuator.There is provided reliable, compact and sane design by installing the position-detection sensor be integrated in the housing of gear shifting actuator, wherein sensor is positioned near microprocessor to avoid tediously long signal cable.But the solution that position-detection sensor measures the physical location of reverse shift fork has the advantage that such as can detect reverse shift fork and damage.
Whether position-detection sensor is important for the reliability of automatic transmission, activate as expectedly carrying out because they are used to examine gear shift.Be combined by the position that the desired location be stored in transmission control unit 107 and sensor are inputted, reduce the risk of the potential failure of transmission control unit 107, because: if these values are different, then some things in speed changer may be out of order.Correctly run in order to ensure position-detection sensor, they may need calibration.
May increase the starting time of vehicle to the calibration of position-detection sensor, this is undesirable.Only thinking that it is more efficient for just performing this calibration if desired, therefore performing the contrast with precalculated position scope.In addition, if speed changer is removed, keeps in repair or opens, then calibration is likely required.
For avoiding a solution of the unnecessary calibration consuming time of speed changer 103 to be stop at the automatic calibration to position-detection sensor when each speed changer is enabled, but use is when calibration necessity or instruction when recommending really of sensor.The efficient instruction of a calibration for trigger sensor detects shift change controller 107 removing from case of transmission 240.
When being removed by shift change controller 107 for any reason, gear shifting actuator may very well from their normal place (when speed changer and/or motor are shut down, gear shifting actuator is controlled so as to take normal place) displacement.Such as, if maintenance technician changes actuator etc., then actuator will probably not take as removed the same position before shift change controller 107.
Possible need the displacement of at least one gear shifting actuator so that shift change controller 107 can remove and be assembled to case of transmission 240 from case of transmission 240 in the Another reason removing period one or more gear shifting actuator displacement of shift change controller 107.Opening 241 on case of transmission 240 can limit size in such a way, make when gear shifting actuator 270 is in some predetermined desired location scope and thus reverse shift fork 231,232,233 and coupling sleeve 234,235,236 are in some predetermined desired location scope, only allow to remove transmission control unit 107 from gear-box 103, as Fig. 2 and 3 visible.In the example disclosed in Fig. 2 and Fig. 3, a reverse shift fork 231 must manually or electronically be controlled to be in actuated position (at this actuated position, the coupling sleeve 234 be associated and the gear 202 corresponding with the high tap position of speed changer transfer case mechanism engage), and another reverse shift fork 233 must manually or electronically be controlled to be in actuated position (at this actuated position, the coupling sleeve 236 be associated engages with gear 204).Just the maximum axial extension E3 of reverse shift fork is less than the axis extension E1 of opening 241 in this configuration, can remove and assemble shift change controller 107, as shown in Figure 3, wherein, shift change controller 107 is just being assembled or is dismantling and to be therefore shifted a segment distance E4 from the outer surface of housing 240.Tentative standard position (position that gear shifting actuator is taken by controlling when speed changer and/or motor are shut down) is neutral position as shown in Figure 2.Then shift change controller can not be removed, because the maximum axial of reverse shift fork extends E2 is greater than opening 241 axis extension E1 at this.In this example, therefore gear shifting actuator 270 must adopt the position within the scope of predetermined desired location, transmission control unit 107 is installed to case of transmission 240.
When the enabling each time of speed changer, thus the position of gear shifting actuator can be automatically recorded, for detecting any displacement of any actuator from desired location.If the record position of any gear shifting actuator in gear shifting actuator is in outside predetermined desired location scope, then calibration is performed to position-detection sensor.This predetermined desired location scope can be such as depart from certain distance of +/-from the desired location of gear shifting actuator, such as, from the misalignment +/-2 millimeters of desired location X.
According to alternative method, if the record position of any gear shifting actuator in gear shifting actuator is within the scope of predetermined out-of-the way position, then the calibration to position-detection sensor can be performed.This out-of-the way position scope can be corresponding with the region outside predetermined desired location scope defined above, the complete output area of the sensor such as except limited desired location scope, such as 0 to X-2mm and X+2mm are to infinite, and wherein X is corresponding with the center of desired extent.
Whether whether corresponding with the predetermined value behavior of record position of contrast gear shifting actuator comprises analytic record position and is positioned within prespecified range.This predetermined value is stored in such as shift change controller 107 or be such as advantageously connected in the data storage of another suitable control unit of the control unit for vehicle of shift change controller 107 via such as CAN 109.
Fig. 4 illustrates the flow chart described according to method of the present disclosure.The method starts with step 601, and step 601 is positions of at least one gear shifting actuator of use position detecting sensor record when speed changer is enabled.In follow-up step 602, recorded position and precalculated position scope are contrasted.In ensuing determining step 603, if the result of contrast shows that recorded position is outside the position range of expection or within out-of-the way position scope, then determine to perform calibration.If be "Yes", then next step 604 relates to the calibration to position-detection sensor, if be "No", then the method terminates.
Maybe advantageously, only just calibration is performed when shift change controller 107 is installed to gear-box 103, with may damaging of preventing from causing due to gear shifting actuator mobile between alignment epoch.Automatically determine a kind of mode whether shift change controller is installed to housing is whether the communications cable checking such as CAN 109 is inserted in gear shifting actuator.If be "No", then gear shifting actuator is probably disassembled or Under Repair.
Can direct executive logging, contrast and calibration before or after engine start.Importantly, before speed changer is used for transmitting torque, calibration is performed.Preferably when vehicle is in static executive logging, contrast and calibration to avoid any external noise.
The invention still further relates to computer program, computer program and the storage medium for computer, all these and computer one are used from and perform described method.Fig. 5 illustrates application the present invention on a computing device.Fig. 5 illustrates equipment 400 according to an embodiment of the invention, and it comprises nonvolatile memory 420, processor 410 and read write memory 460.Storage 420 has the first memory section 430, stores the computer program being used for control apparatus 400 in memory section 430.The computer program for control apparatus 400 in memory section 430 can be operation system.
Equipment 400 can encapsulate the control unit of such as data processing unit 410.Data processing unit 410 can comprise such as microprocessor.Storage 420 also has the second memory section 440, stores the program according to the automatic calibration for position-detection sensor of the present disclosure in the second memory section 440.In alternative embodiments, the program for the automatic calibration of position-detection sensor is stored in independent in the non-volatile memory medium 450 of data, such as, in CD or commutative semiconductor memory.This program can store in the form of an executable program or with compressive state.When following provisions data processing unit 410 runs specific function, should be clear that, data processing unit 410 runs the specific part that the specific part of the program in storage 440 of being stored in or operation are stored in the program in non-volatile memory medium 450.
Data processing unit 410 is configured to be communicated with memory 450 by data/address bus 414.Data processing unit 410 is also configured to be communicated with storage 420 by data/address bus 412.In addition, data processing unit 410 is configured to be communicated with storage 460 by data/address bus 411.Data processing unit 410 is also configured to be communicated with FPDP 490 by usage data bus 415.By data processing unit 410, by running the program be stored in storage 440 or the data processing unit 410 being stored in the program in non-volatile memory medium 450, can perform according to method of the present invention.
Reference mark mentioned in the claims should not be considered as the scope limiting claim main body required for protection, and their unique function is that claim is easier to understand.
As being implemented, the disclosure can make amendment in each is obvious, and all such modifications do not depart from the scope of claims.Therefore, drawing and description should think it is illustrative and nonrestrictive in essence at this.
Claims (32)
1., for carrying out a method for automatic calibration to the position-detection sensor of the automatic transmission comprising gear shifting actuator, described method comprises:
The position of gear shifting actuator described in described position-detection sensor record is used when described speed changer is enabled; And
If the position of the described gear shifting actuator recorded outside the predetermined desired location scope of described gear shifting actuator or within the predetermined out-of-the way position scope of described gear shifting actuator, then performs the calibration to described position-detection sensor.
2. method according to claim 1, wherein, between normal speed changer lay-off period, controls described gear shifting actuator and is in predetermined shift mode, and is chosen to corresponding with described predetermined shift mode by described predetermined desired location scope.
3. the method according to any one in aforementioned claim, comprising: immediately preceding performing described method before or after engine start.
4. the method according to any one in aforementioned claim, comprising: after described speed changer is enabled, performed described method before permission uses gear-box transfer drive torque.
5. the method according to any one in aforementioned claim, performs described method when being included in stationary vehicle.
6. the method according to any one in aforementioned claim, wherein, described speed changer comprises multiple gear shifting actuator, and each gear shifting actuator is all associated with independent position-detection sensor.
7. method according to claim 6, comprising:
The position of described position-detection sensor record at least two gear shifting actuators is used when engine start; And
If each the recorded position of described at least two gear shifting actuators is outside the predetermined desired location scope of described gear shifting actuator, if or each the recorded position of described at least two gear shifting actuators is within the predetermined out-of-the way position scope of described at least two gear shifting actuators, then perform the calibration to the position-detection sensor be associated.
8., for carrying out a method for automatic calibration to the position-detection sensor of the automatic transmission comprising gear shifting actuator, described method comprises:
If can detect that when described speed changer is enabled the request of described automatic transmission is dismantled in nearest preparation, then perform the calibration of the described position-detection sensor be associated with described gear shifting actuator.
9. the method according to any one in aforementioned claim, wherein, described automatic transmission comprises: case of transmission; At least input shaft and output shaft; The coupling sleeve of multiple gear and axially-displaceable position, the coupling sleeve of described multiple gear and axially-displaceable position is used between described input shaft and described output shaft, realize multiple selectable gear ratio; And multiple reverse shift fork, described multiple reverse shift fork is removably connectable to described coupling sleeve and is fastened to described gear shifting actuator.
10. method according to claim 9, wherein, described speed changer comprises transmission control unit and reverse shift fork assembly, described transmission control unit and reverse shift fork assembly are secured to the outside of described case of transmission, described transmission control unit comprises described gear shifting actuator, and wherein, described reverse shift fork extends to described coupling sleeve from described gear shifting actuator through at least one opening the wall of described case of transmission.
11. methods according to claim 10, wherein, described speed changer is arranged to prevent described transmission control unit and described reverse shift fork assembly to be installed to described case of transmission, unless at least one gear shifting actuator is within the scope of described predetermined desired location.
12. methods according to claim 11, wherein, described transmission control unit and described reverse shift fork assembly is prevented to be installed to described case of transmission, because when removing described assembly, at least one reverse shift fork can with any one partial coherence in the described axle of described case of transmission, described gear or described speed changer.
13. methods according to any one in aforementioned claim, wherein, comprise the calibration of described position-detection sensor:
Control described gear shifting actuator and be in neutral gear shift mode, then
Record the output signal of described position-detection sensor.
14. 1 kinds of computer programs, comprise described in any one that enforcement of rights when said program is run on requires in 1-13 program-code in steps.
15. 1 kinds of computer programs, comprise storage program-code on a computer-readable medium, and when described program product runs on computers, the institute described in any one in described program-code enforcement of rights requirement 1-13 in steps.
16. 1 kinds of computer systems, for implementing the method for the position-detection sensor of the automatic transmission comprising gear shifting actuator being carried out to automatic calibration, described method comprises:
The position of gear shifting actuator described in described position-detection sensor record is used when described speed changer is enabled; And
If the position of the described gear shifting actuator recorded outside the predetermined desired location scope of described gear shifting actuator or within the predetermined out-of-the way position scope of described gear shifting actuator, then performs the calibration to described position-detection sensor.
17. 1 kinds of computer systems, for implementing the method for the position-detection sensor of the automatic transmission comprising gear shifting actuator being carried out to automatic calibration, described method comprises:
If can detect that when described speed changer is enabled the request of described automatic transmission is dismantled in nearest preparation, then perform the calibration of the described position-detection sensor be associated with described gear shifting actuator.
18. 1 kinds of automatic transmission, comprise: gear shifting actuator, position-detection sensor and the transmission control unit for controlling described gear shifting actuator, it is characterized in that, described control unit is arranged to by the automatic calibration of following steps execution to described position-detection sensor:
The position of gear shifting actuator described in described position-detection sensor record is used when described speed changer is enabled; And
If if the position of the described gear shifting actuator recorded outside the predetermined desired location scope of described gear shifting actuator or the position of the described gear shifting actuator recorded within the predetermined out-of-the way position scope of described gear shifting actuator, then perform the calibration to described position-detection sensor.
19. automatic transmission according to claim 18, is characterized in that, between normal down period, control described gear shifting actuator and are in predetermined shift mode, and are chosen to corresponding with described predetermined shift mode by described predetermined desired location scope.
20. automatic transmission according to claim 18 or 19, is characterized in that, immediately preceding performing described calibration before or after engine start.
21. automatic transmission according to claim 18 or 9, is characterized in that, after described speed changer is enabled, performed described calibration before permission uses gear-box transfer drive torque.
22. according to claim 18 to the automatic transmission described in any one in 21, and it is characterized in that, described speed changer comprises multiple gear shifting actuator, and each gear shifting actuator is all associated with independent position-detection sensor.
23. automatic transmission according to claim 22, are further characterized in that, described control unit is arranged to by the automatic calibration of following steps execution to described position-detection sensor:
The position of described position-detection sensor record at least two gear shifting actuators is used when described speed changer is enabled; And
If if each the recorded position of described at least two gear shifting actuators outside predetermined desired location scope or each the recorded position of described at least two gear shifting actuators within predetermined out-of-the way position scope, then perform the calibration to the position-detection sensor be associated.
24. 1 kinds of automatic transmission, comprise: gear shifting actuator, position-detection sensor and the transmission control unit for controlling described gear shifting actuator, it is characterized in that, described control unit is arranged to by the automatic calibration of following steps execution to described position-detection sensor:
If can detect that when described speed changer is enabled the request of described automatic transmission is dismantled in nearest preparation, then perform the calibration of the described position-detection sensor be associated with described gear shifting actuator.
25. according to claim 18 to the automatic transmission described in any one in 24, and it is characterized in that, described automatic transmission comprises: case of transmission; At least input shaft and output shaft; The coupling sleeve of multiple gear and axially-displaceable position, the coupling sleeve of described multiple gear and axially-displaceable position is used between described input shaft and described output shaft, realize multiple selectable gear ratio; And multiple reverse shift fork, described multiple reverse shift fork is removably connectable to described coupling sleeve and is fastened to described gear shifting actuator.
26. automatic transmission according to claim 25, it is characterized in that, described speed changer comprises transmission control unit and reverse shift fork assembly, described transmission control unit and reverse shift fork assembly are secured to the outside of described case of transmission, described transmission control unit comprises described gear shifting actuator, and wherein, described reverse shift fork extends to described coupling sleeve from described gear shifting actuator through at least one opening the wall of described case of transmission.
27. automatic transmission according to claim 26, it is characterized in that, described speed changer is arranged to prevent described transmission control unit and described reverse shift fork assembly to be installed to described case of transmission, unless at least one gear shifting actuator is within the scope of described predetermined desired location.
28. automatic transmission according to claim 27, it is characterized in that, described transmission control unit and described reverse shift fork assembly is prevented to be installed to described case of transmission, because when removing described assembly, at least one reverse shift fork can be interfered with any one in the described axle of described case of transmission, described gear or described speed changer.
29., according to claim 18 to the automatic transmission described in any one in 28, are further characterized in that, described control unit is arranged to perform calibration to described position-detection sensor by following steps:
Control described gear shifting actuator and be in its neutral position, then
Record the output signal of described position-detection sensor.
30. according to claim 18 to the automatic transmission described in any one in 29, and it is characterized in that, described automatic transmission also comprises the computer system according to claim 16 or 17.
31. 1 kinds of vehicles, comprise according to claim 18 to the automatic transmission described in any one in 30.
32. vehicles according to claim 31, also comprise the computer system according to claim 16 or 17.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| PCT/EP2013/002448 WO2015021997A1 (en) | 2013-08-14 | 2013-08-14 | Method for automatic calibration of automatic transmission |
Publications (2)
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| CN105492804A true CN105492804A (en) | 2016-04-13 |
| CN105492804B CN105492804B (en) | 2018-01-05 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201380078823.XA Active CN105492804B (en) | 2013-08-14 | 2013-08-14 | Method for being calibrated automatically to automatic transmission |
Country Status (4)
| Country | Link |
|---|---|
| US (2) | US10288170B2 (en) |
| EP (1) | EP3033551B1 (en) |
| CN (1) | CN105492804B (en) |
| WO (1) | WO2015021997A1 (en) |
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| CN113464644A (en) * | 2021-06-24 | 2021-10-01 | 三一重型装备有限公司 | Gearbox gear calibration system, vehicle and gearbox gear calibration method |
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Also Published As
| Publication number | Publication date |
|---|---|
| US20160153553A1 (en) | 2016-06-02 |
| EP3033551A1 (en) | 2016-06-22 |
| US20190195356A1 (en) | 2019-06-27 |
| US10648557B2 (en) | 2020-05-12 |
| EP3033551B1 (en) | 2020-04-15 |
| CN105492804B (en) | 2018-01-05 |
| WO2015021997A1 (en) | 2015-02-19 |
| US10288170B2 (en) | 2019-05-14 |
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